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Synthesis, Crystal Structure and anti-tmv activity of(Z)-4-[3-(4-Methyl-1,2,3-thiadiazol-5-yl)-3-(4-trifluoromethylphenyl)acryloyl]morpholine

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Chinese Journal of Structural Chemistry 2021年第1期40卷 109-113,4页

作者： SUN Su-Su LI Qing GAO Wei LI Xiao-Tian CHEN Lai ZHANG Jin-Lin College of Plant Protection Hebei Agricultural UniversityBaoding 071001China

The target compound(Z)-4-[3-(4-methyl-1,2,3-thiadiazol-5-yl)-3-(4-trifluoromethylphenyl)acryloyl]morpholine was synthesized by the nucleophilic substitution,Horner-Emmons reaction,ester hydrolysis,and *** structure was characterized by NMR,H RMS and single-crystal X-ray *** crystal of the target compound belongs to monoclinic system,space group P2_(1) with a=11.5058(15),b=6.6626(10),c=23.184(3)Å,V=1777.3(4)Å^(3),Z=8,D_(c)=1.496 Mg/m^(3),F(000)=792 andμ=0.229 mm^(–1).X-ray analysis indicated C–H....O intermolecular H-bonds in this crystal *** target compound exhibited 53%curative activity against tmv.

关键词： 1,2,3-thiadiazole cinnamic amide synthesis crystal structure anti-tmv activity

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Synthesis and anti-tmv activity of novel N-(pyrimidin-5-yl)-N'-phenylureas

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Chinese Chemical Letters 2011年第1期22卷 18-20页

作者： De Kai Yuan Da Qiang Zhang Ru Xing Li Dao Quan Wang Xin Ling Yang Department of Applied Chemistry Science College China Agricultural University Beijing 100191 China Beijing Double-crane Pharmaceutical Co. Ltd. Beijing 100102 China

In order to find novel leading structures of pesticide, a series of N-（pyrimidin-5-yl）-N1-phenylureas （4a-4h） were designed and synthesized from 4-chloro-2-diethylamino-6-methyl-5-nitropyrimidine 1 via substitution, reduction and acylation procedures. Preliminary bioassay showed that all the target compounds processing good anti-tmv （tobacco mosaic virus） activity. Two compounds （4d and 4e） displayed higher activity superior to virazole at a concentration of 5.0 ×10^-4 g/mE.

关键词： N-(Pyrimidin-5-yl)-N1-phenylureas Synthesis anti-tmv activity

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anti-tmv and Insecticidal Potential of Four Iridoid Glycosides from Gardenia Jasminoides Fruit

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Chemical Research in Chinese Universities 2018年第5期34卷 697-699页

作者： LI Ling ZOU Jiyong XIA Qing CUI Hongmin YOU Shengyong LIU Yuxiu WANG Qingmin Institute of Applied Chemistty Jiangxi Academy of Sciences Nanchang 330096 P R. China State Key Laboratory of Elemento-Organic Chemistry Research Institute of Elemento-Organic Chemistry College of Chemistry Collaborative Innovation Center of Chemical Science and Engineering Nankai University Tianjin 300071 P. R. China

In agriculture, pests are largely controlled by agricultural chemicals. The vast majority of these pesticides are synthetic compounds, some of which are based on natural products, and a few of which are synthetic versions of natural products. Pests have evolved resistance to many of the current pesticides, often by alterations in the molecular target site. Thus, pesticides with new molecular target sites and modes of action are needed.

关键词： Gardenia jasminoides fruit Iridoid glycoside anti-tmv activity Insecticidal activity

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anti-tmv Effects of Amaryllidaceae Alkaloids Isolated from the Bulbs of Lycoris radiata and Lycoricidine Derivatives

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Natural Products and Bioprospecting 2018年第3期8卷 189-197页

作者： Dong-Qiong Yang Zhao-Rong Chen Duo-Zhi Chen Xiao-Jiang Hao Shun-Lin Li State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of BotanyChinese Academy of SciencesKunming 650201People’s Republic of China University of Chinese Academy of Sciences Beijing 100049People’s Republic of China Tianjin Agricultural University Tianjin 300380People’s Republic of China

Fifteen known amaryllidaceae alkaloids were isolated from the bulbs of Lycoris *** of the compounds and lycoricidine derivatives had been screened for the activities against tobacco mosaic virus(tmv)by the conventional halfleaf *** derivatives were also carried out the assay of effect on systemic infection of tmv by western-blot and RT-PCR *** tested compounds showed moderate inactivation effect,whereas the lycoricidine derivatives showed good protective *** protective inhibitory activity of compounds L1(N-methyl-2,3,4-trimethoxyly-coricidine)(60.8%)and L3(N-methyl-2-methoxy-3,4-acetonidelycoricidine)(62.0%)was almost similar to the positive control,Ningnanmycin(66.4%).RT-PCR and Western-blot analysis displayed that compounds L1,L3,L5(N-allyl-2,3,4-triallyloxylycoricidine)exhibited antiviral activity,which was evidenced by reducing tmv-CP gene replication and tmv-CP protein ***,defensive enzyme activities confirmed that compound L1 could increase the activity of PAL,POD,SOD to improve disease resistance of tobacco.

关键词： Amaryllidaceae alkaloids Lycoricidine derivatives Lycoris radiata Tobacco mosaic virus anti-tmv activity

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